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CIVIL RESOURCES <br /> ➢ Mayer Family Farms LLC Well(Permit#15399-R): Located north east and cross gradient of the slurry wall lined <br /> Cell 3. The effects of the slurry wall are anticipated to be minimal for this well. <br /> ➢ Joe and Chris Miller Well (Permit#212993): Located east and upgradient of the slurry wall lined Cell 3. There <br /> may be a mounding effect from the slurry wall on the order of a couple feet. <br /> ➢ Ralph Nix Produce Well(Permit #200374): Located southeast and upgradient of the slurry wall lined Cell 3. <br /> There may be a mounding effect from the slurry wall on the order of a couple feet. <br /> ➢ Mayer Family Farm Well (Permit #15750-R-R): Located south and upgradient of the slurry wall lined Cell 6. <br /> There may be a mounding effect from the slurry wall on the order of a couple feet. <br /> Groundwater Level Monitoring and Mitigation Plan <br /> Dewatering during mining of Cells 1 and 2 is unlikely to affect any wells in the area. However, if the miner receives a <br /> complaint,the following mitigation plan will be implemented. <br /> The site monitoring wells will be measured monthly to identify potential changes in alluvial groundwater flow or elevation <br /> associated with mining and reclamation activities. Baseline data collected from the monitoring program will provide a <br /> range of relative water levels associated with premining groundwater conditions. Experience at other mines in similar <br /> geologic settings has found that groundwater levels tend to fluctuate being highest in the summer irrigation season and <br /> lowest in the winter and early spring. <br /> If, during mining or reclamation,the relative seasonal groundwater elevation at any monitoring wells differs from baseline <br /> conditions by more than 2 feet, and the condition was not observed during baseline monitoring, or if the miner receives a <br /> complaint from any well owner within 600 feet of the site boundary, then the miner will evaluate the cause and will notify <br /> the DRMS within 7 days.. <br /> After the DRMS has been notified, the miner will review the data and available information and submit a report to the <br /> DRMS within 30 days. The evaluation will include discussions with the well owner who has contacted the miner <br /> regarding a concern and review of baseline data from the well and vicinity to evaluate whether changes may be due to <br /> seasonal variations, climate, mining, slurry wall lining or other factors. The report will identify the extent of potential or <br /> actual impacts associated with the changes. If the extent of groundwater changes due to mining or reclamation activities <br /> is determined to be a significant contributing factor that has or may create adverse impacts, the mining associated <br /> impacts will be addressed to the satisfaction of the DRMS. <br /> Miner will begin implementing one or more mitigation measures if mining and reclamation activity is determined to be a <br /> significant factor to groundwater changes requiring mitigation. <br /> Mitigation measures may include, but are not limited to: <br /> ➢ Placing water in a recharge pond to raise groundwater levels around the well. <br /> ➢ Constructing a local clay liner at the edge of the mine Cell (i.e. between the dewatering point and the well) in <br /> order to raise water levels on the well side of the liner and mitigate dewatering effects. <br /> ➢ Cleaning the well to improve efficiency. <br /> ➢ Providing an alternative source of water or purchasing additional water to support historic well use in terms of <br /> water quantity and quality. If needed, water quality parameters will be checked in affected wells to ensure <br /> alternative sources support historic use. <br />